Antigen-binding-enhanced divalent nanobody-based immunomagnetic separation coupled with ATP bioluminescence for viable Salmonella detection.

A Convenient Colorimetric Biosensor Based on Immunomagnetic Separation and G-Quadruplex DNAzyme Signal Amplification for Ultrasensitive Detection of Vibrio parahaemolyticus in Seafood

An integrated litmus test platform for low-background detection and photothermal inactivation of Salmonella typhimurium via HCR-urease signal amplification.

A novel "low-background" biosensing platform integrating magnetic separation and hybridization chain reaction (HCR) for signal amplification, enabling ratiometric colorimetric detection and visual observation of S. typhimurium, offering a proactive defense for food safety.

Bacteriophage amplification-assisted lateral flow biosensor for rapid viability-targeted screening of Salmonella in chicken meat.

Salmonella contamination in poultry meat remains a major global food safety concern, necessitating rapid and reliable viability-targeted detection methods. Here, we developed a platform of phage amplification (PA)-assisted lateral flow biosensor for rapid screening of viable Salmonella in chicken meat. The platform com...

A cascade catalysis-enhanced microfluidic platform for rapid foodborne pathogen detection using Pt@Zr-MOF nanozymes.

Salmonella typhimurium (S. typhimurium) has become a major pathogen in the field of food safety, seriously threatening human health. Although mainstream diagnostic assays, including culture-based methods, enzyme-linked immunosorbent assay (ELISA), and molecular diagnostic technology, are generally reliable, each method...

Bacteriophage and Urease-Conjugated Janus Micromotors for Dynamic Enrichment and Sensitive Detection of Bacteria

It is highly demanded to establish effective and sensitive method for detecting pathogenic bacteria because of their high morbidity. The conventional molecular recognition-based methods rely on heterogeneous mode, for which the passive diffusion of bacterial cells and signal tracer results in low transport efficiency...

Rapid Broad-Spectrum Colorimetric Detection of Bacteria Using Polylysine-Mediated Gold Nanoparticle Aggregation.

Rapid on-site detection of bacterial contamination remains an urgent need in public health and environmental monitoring. Herein, we report a one-step, label-free colorimetric sensor for broad-spectrum bacterial detection based on a competitive electrostatic mechanism. Cationic poly-l-lysine (PLL) induces the aggregatio...